There are currently 13 names in this directory
The direction in which the vortex will probably travel.
The point in the path of a celestial body (as a planet) that is nearest to the sun.
A small free balloon that drift off which, as observed from the ground, indicates the movements of the air aloft.
POLAR AIR MASS
A mass of very cold, very dry air that forms in polar regions.
POLAR CONTINENTAL AIR MASS
Polar air mass that originates over land or frozen ocean areas in the polar regions. It is characterized by low temperatures, low specific humidity and a high degree of vertical visibility.
POLAR MARITIME AIR MASS
Polar air mass that originally came from the polar regions but has since been modified by reason of its passage over a relatively warm ocean surface. It is characterized by moderately low surface temperatures, moderately high surface specific humidity, and a considerable degree of vertical instability
Any liquid or solid form of water that falls from the atmosphere and reaches the surface of the Earth.
An elliptical expression, current in meteorological literature, for atmospheric pressure, or barometric pressure.
PRESSURE GRADIENT FORCE
Force acting on air that causes it to move from areas of higher pressure to areas of lower pressure.
The direction from which the wind blows frequently in any location.
The belts of winds lying on the poleward sides of the subtropical high-pressure belts.
An instrument that measures relative humidity of the air.
An instrument that measures solar radiation by its heating effects.
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